== sanity test 421d: rmfid en masse ====================== 10:30:29 (1788532229)
 - open/close 871 (time 1788532243.07 total 10.01 last 87.04)
 - open/close 1690 (time 1788532253.08 total 20.01 last 81.88)
 - open/close 2538 (time 1788532263.08 total 30.01 last 84.78)
 - open/close 3431 (time 1788532273.08 total 40.01 last 89.28)
total: 4097 open/close in 47.72 seconds: 85.86 ops/second